package top.api.utils;

import com.google.gson.Gson;
import com.qiniu.common.QiniuException;
import com.qiniu.http.Response;
import com.qiniu.storage.Configuration;
import com.qiniu.storage.Region;
import com.qiniu.storage.UploadManager;
import com.qiniu.storage.model.DefaultPutRet;
import com.qiniu.util.Auth;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.util.ObjectUtils;
import org.springframework.web.multipart.MultipartFile;
import top.api.enums.AppHttpCodeEnum;
import top.api.exception.SystemException;
import top.api.properties.OssProperties;

import java.io.BufferedInputStream;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;

/**
 * 七牛云工具类
 */
@Slf4j
public class OssUtils {

    /**
     * 上传图片
     * @return
     */
    public String ossUploadImg(OssProperties ossProperties,MultipartFile file, String filePath) {
        if (ObjectUtils.isEmpty(ossProperties)){
            log.error("ossProperties is null");
            throw new SystemException(AppHttpCodeEnum.SYSTEM_ERROR);
        }

        //构造一个带指定 Region 对象的配置类
        Configuration cfg = new Configuration(Region.autoRegion());
        cfg.resumableUploadAPIVersion = Configuration.ResumableUploadAPIVersion.V2;// 指定分片上传版本
        //...其他参数参考类注释

        UploadManager uploadManager = new UploadManager(cfg);
        //...生成上传凭证，然后准备上传
        String accessKey = ossProperties.getAccessKey();
        String secretKey = ossProperties.getSecretKey();
        String bucket = ossProperties.getBucket();
        //默认不指定key的情况下，以文件内容的hash值作为文件名
        String key = filePath;

        try {

            // 包装成高级缓冲输入流
            InputStream bufferedInputStream = new BufferedInputStream(file.getInputStream());

            Auth auth = Auth.create(accessKey, secretKey);
            String upToken = auth.uploadToken(bucket);

            try {
                Response response = uploadManager.put(bufferedInputStream, key, upToken,null,null);
                //解析上传成功的结果
                DefaultPutRet putRet = new Gson().fromJson(response.bodyString(), DefaultPutRet.class);
                System.out.println(putRet.key);
                System.out.println(putRet.hash);

                return ossProperties.getUrlPrefix() + filePath;
            } catch (QiniuException ex) {
                Response r = ex.response;
                System.err.println(r.toString());
                try {
                    System.err.println(r.bodyString());
                } catch (QiniuException ex2) {
                    //ignore
                }
            }
        } catch (Exception ex) {
            //ignore
        }
        return null;
    }
}
